using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;

namespace ZXL.ID
{
    /// <summary>
    /// 生成全局唯一ID（设备的唯一识别符+通过系统时间+int的最大值和最小值随机取值）
    /// </summary>
    public static class GenerateGlobalID
    {
        /// <summary>
        /// ID存储
        /// </summary>
        private static List<string> list_ID = new List<string>();

        /// <summary>
        /// 当前最新的ID
        /// </summary>
        private static string id;

        private static List<int> list_Int_ID = new List<int>();
        private static int int_Id;

        /// <summary>
        /// 生成ID逻辑（使用递归生成全局唯一ID）
        /// </summary>
        private static void Generate()
        {
            id = SystemInfo.deviceUniqueIdentifier + DateTime.Now + UnityEngine.Random.Range(int.MinValue, int.MaxValue);
            while (list_ID.Contains(id))
            {
                Generate();
            }

            list_ID.Add(id);
        }

        private static void GenerateInt()
        {
            int_Id = UnityEngine.Random.Range(int.MinValue, int.MaxValue);

            while (list_Int_ID.Contains(int_Id))
            {
                GenerateInt();
            }

            list_Int_ID.Add(int_Id);
        }

        public static int GenerateIntID()
        {
            int id = UnityEngine.Random.Range(int.MinValue, int.MaxValue);
            while (list_Int_ID.Contains(id))
            {
                Generate();
            }

            return id;
        }

        /// <summary>
        /// 生成ID
        /// </summary>
        /// <returns>返回生成好的ID</returns>
        public static string GenerateID()
        {
            Generate();
            return id;
        }

        /// <summary>
        /// 移除ID（假回收ID重复使用）
        /// </summary>
        /// <param name="id">需要移除的ID</param>
        public static void RemoveID(string id)
        {
            if (list_ID.Contains(id))
            {
                list_ID.Remove(id);
            }
        }
    }
}